13432253021 has 8 divisors (see below), whose sum is σ = 14657013504. Its totient is φ = 12208100320.

The previous prime is 13432252997. The next prime is 13432253047. The reversal of 13432253021 is 12035223431.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13432253021 - 2⁶ = 13432252957 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13432255021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105101 + ... + 194706.

It is an arithmetic number, because the mean of its divisors is an integer number (1832126688).

Almost surely, 2^13432253021 is an apocalyptic number.

13432253021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13432253021 is a deficient number, since it is larger than the sum of its proper divisors (1224760483).

13432253021 is a wasteful number, since it uses less digits than its factorization.

13432253021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303891.

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 13432253021 its reverse (12035223431), we get a palindrome (25467476452).

The spelling of 13432253021 in words is "thirteen billion, four hundred thirty-two million, two hundred fifty-three thousand, twenty-one".